The new foundation for four-digit power. If you’ve reached the limit of the factory LT block, or you simply want some extra piece of mind on your next build, then this just may be your answer. The LTR-SD10X is a U.S.-made, all-aluminum Gen V LT race block engineered for extreme boost, big cubic-inch builds, and the kind of durability the OEM casting simply can’t deliver. Designed to accept OEM LT accessories but built with aftermarket-level strength, this is the block serious LT builders have been waiting for.
Whether you’re chasing 1,000+ HP street reliability or 2,000+ HP competition abuse, the LTR gives you the confidence to lean on it — lap after lap, pull after pull.
Key Features
Cross-braced lifter valley Adds rigidity and individual oil drain-backs for high-rpm stability.
Fully reinforced casting + HIP process Hot Isostatic Pressing removes porosity and maximizes material density.
Billet steel main caps w/ domed design M10 studs + side bolts + dowels = maximum crank stability under boost.
120 lb total weight True race strength without the iron-block penalty.
Priority main oiling Oil is fed to crank and rods first — critical for high-rpm, high-load setups.
Ductile-iron sleeves Thick, shock-resistant, and ready for big bore + big cylinder pressure.
What’s in the BOX…
Durabond GMP-9 cam bearings
Rear cover + gasket + hardware
Plug kit & oil galley barbell plug
Precision-ground steel cam thrust plate
Transmission dowel pins
Rear main seal
Builder Notes…
This block is semi-machined and ready for final finish work to your exact spec. Required machining:
Final deck surface (0.011" extra material left)
Final hone (4.110" bore as-delivered)
Final main bore hone (0.003" material remaining)
Cam and lifter bores are already finish-machined.
BONUS OFFER
When you select our ATI Damper + ARP Bundle, you now save nearly $300 which more than offsets the cost of shipping, easily making this the BEST LTR Deal on the internet.
Block always drop ships from Fleece Performance Engineering. Lead times to ship can vary between 3-30 days so please order in advance. Or feel free to email me by clicking THIS link to check on current lead-times and inventory.
Wanna save even more? Email me HERE with your complete build list and let me send you a custom discount code to help save even more when you add a Katech Spec head & Cam package, cooling & fuel upgrades and more…
TURN-KEY OPTIONS
Do you wanna convert this into a turn-key short or long block assembly? Let us know… we can work with our engine builder of choice FLAG MOTORSPORTS to turn this ultra-capable block into a monster of a turn-key motor to meet any application.
NOTE: We cannot ship this block to CA, but we can build you a custom motor and ship that to CA…. Email us for more information.
FREE SHIPPING BUNDLE:
Get notified by email when this product is in stock.
2,000+ HP LTR Gen V LT Race Block
The new foundation for four-digit power. If you’ve reached the limit of the factory LT block, or you simply want some extra piece of mind on your next build, then this just may be your answer. The LTR-SD10X is a U.S.-made, all-aluminum Gen V LT race block engineered for extreme boost, big cubic-inch builds, and the kind of durability the OEM casting simply can’t deliver. Designed to accept OEM LT accessories but built with aftermarket-level strength, this is the block serious LT builders have been waiting for.
Whether you’re chasing 1,000+ HP street reliability or 2,000+ HP competition abuse, the LTR gives you the confidence to lean on it — lap after lap, pull after pull.
Key Features
Cross-braced lifter valley Adds rigidity and individual oil drain-backs for high-rpm stability.
Fully reinforced casting + HIP process Hot Isostatic Pressing removes porosity and maximizes material density.
Billet steel main caps w/ domed design M10 studs + side bolts + dowels = maximum crank stability under boost.
120 lb total weight True race strength without the iron-block penalty.
Priority main oiling Oil is fed to crank and rods first — critical for high-rpm, high-load setups.
Ductile-iron sleeves Thick, shock-resistant, and ready for big bore + big cylinder pressure.
What’s in the BOX…
Durabond GMP-9 cam bearings
Rear cover + gasket + hardware
Plug kit & oil galley barbell plug
Precision-ground steel cam thrust plate
Transmission dowel pins
Rear main seal
Builder Notes…
This block is semi-machined and ready for final finish work to your exact spec. Required machining:
Final deck surface (0.011" extra material left)
Final hone (4.110" bore as-delivered)
Final main bore hone (0.003" material remaining)
Cam and lifter bores are already finish-machined.
BONUS OFFER
When you select our ATI Damper + ARP Bundle, you now save nearly $300 which more than offsets the cost of shipping, easily making this the BEST LTR Deal on the internet.
Block always drop ships from Fleece Performance Engineering. Lead times to ship can vary between 3-30 days so please order in advance. Or feel free to email me by clicking THIS link to check on current lead-times and inventory.
Wanna save even more? Email me HERE with your complete build list and let me send you a custom discount code to help save even more when you add a Katech Spec head & Cam package, cooling & fuel upgrades and more…
TURN-KEY OPTIONS
Do you wanna convert this into a turn-key short or long block assembly? Let us know… we can work with our engine builder of choice FLAG MOTORSPORTS to turn this ultra-capable block into a monster of a turn-key motor to meet any application.
NOTE: We cannot ship this block to CA, but we can build you a custom motor and ship that to CA…. Email us for more information.
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